publication . Article . Preprint . 2015

Estimation of Apollo lunar dust transport using optical extinction measurements

Lane, John E.; Metzger, Philip T.;
Open Access English
  • Published: 28 Feb 2015 Journal: Acta Geophysica, volume 63, issue 2 (issn: 1895-7455, Copyright policy)
  • Publisher: Walter de Gruyter GmbH
Abstract
A technique to estimate mass erosion rate of surface soil during landing of the Apollo Lunar Module (LM) and total mass ejected due to the rocket plume interaction is proposed and tested. The erosion rate is proportional to the product of the second moment of the lofted particle size distribution N(D), and third moment of the normalized soil size distribution S(D), divided by the integral of S(D)D^2/v(D), where D is particle diameter and v(D) is the vertical component of particle velocity. The second moment of N(D) is estimated by optical extinction analysis of the Apollo cockpit video. Because of the similarity between mass erosion rate of soil as measured by o...
Subjects
free text keywords: Astrophysics - Earth and Planetary Astrophysics, Geophysics, Physics - Geophysics
Related Organizations
21 references, page 1 of 2

is part of the velocity model and corresponds to the ratio of mean velocity to the maximum velocity. In the example given by Eq. 8, 1/8. It is assumed that is a constant of the engine design and has no dependencies on S(D).

1 ( f 1) sin 2( f 1) ra2 .

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publication . Article . Preprint . 2015

Estimation of Apollo lunar dust transport using optical extinction measurements

Lane, John E.; Metzger, Philip T.;